Estimated VO2max
I calculated my estimated VO2max (maximal oxygen consumption that the human body is able to utilize per minute of physical activity) by completing the testing procedures for the YMCA step tests and jogging a mile. Each of these methods required different guidelines to find my estimated VO2max, and after analyzing my data, I was able to compare my results to normative tables for the three tests in order to find my cardiovascular fitness classification. It is important to know one’s VO2max in an exercise setting, as it measures the body's ability to produce ATP. ATP is the energy source that allows your muscles to continue working while you are exercising. Therefore, VO2max is basically a measure of one’s cardiorespiratory fitness
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In order to run a mile, I had to run twelve laps around the track in the Recreation Center. Immediately after running the mile, I took my radial pulse. I took my pulse for fifteen seconds and multiplied it by 4 to find that my heart rate was 200 beats per minute. In order to find my VO2max, I used the formula provided. The formula was VO2max (ml*kg-1*min-1 = 100.5 + (8.344 * gender) – (0.0744 * weight) – (1.438 * mile time) – (0.1928 * heart rate). For the gender variable, I used the number zero, because I’m a female. The weight variable was 125 pounds; the mile time variable was nine minutes; and the heart rate variable was 200 beats per minute. After completing the equation, I found that my VO2max was 39.69 ml/kg-1/min-1. My results for this test should be somewhat accurate since I am a college-aged individual and that is the age group that was used for the original test that was developed and validated. Another factor that could have skewed results would be that I found my heart rate by only taking my pulse for fifteen seconds and multiplying it by four. This might have made my results less accurate as my pulse may have slowed down during the rest of the minute making my heart rate less beats per minute. My running economy consisted of me running with my legs swinging outward and hardly leaving the ground. This form is bad for speed, as I lose airtime and stride length. However, it is good for long distance, as it requires less
Data table 1 Well plate Contents Glucose concentration A 3 drops 5% sucrose + 3 drops distilled water Negative B 3 drops milk+3 drops distilled water Negative C 3 drops 5% sucrose +3 drops lactase Negative D 3 drops milk +3 drops lactase 15+ E 3 drops 20% glucose +3 drops distilled water 110 ++ Questions B. In this exercise, five reactions were performed. Of those reactions, two were negative controls and one was a positive control.
Submaximal and maximal exercise testing are two analytic methods that can be used to examine the cardiovascular, and cardiorespiratory fitness/health levels of the individual being examined. Submaximal testing is usually preferred over maximal mainly because the submaximal exam is more practical in a fitness/health environment. Both test require the individual being examined to perform controlled exercise on a(n) treadmill/ergometer until either steady state has consecutively been reached (submax), or the individual reaches their max (close to it). Being that both test are set to exceed time limits of more than 3 minutes we examine the use of the ATP-PC, Glycolytic, and Oxidative energy systems. Although a huge portion of the test involves the use of the oxidative energy system, we must remember that the three systems are co-occurrent.
In a similar study, researchers determined VO2 max using four different methods of treadmill running, cycle ergometer, step test and prediction2. The results found that the treadmill had the highest VO2 max followed by the ergometer, and the step test and prediction were the lowest2. This supports the findings of our experiment, showing that VO2 max will be higher2 depending the tests mode of exercise and how trained the subject is in that exercise.
In this lab, I took two recordings of my heart using an electrocardiogram. An electrocardiogram, EKG pg. 628 Y and pg. 688 D, is a recording of the heart's electrical impulses, action potentials, going through the heart. The different phases of the EKG are referred to as waves; the P wave, QRS Complex, and the T wave. These waves each signify the different things that are occurring in the heart. For example, the P wave occurs when the sinoatrial (SA) node, aka the pacemaker, fires an action potential. This causes the atria, which is currently full of blood, to depolarize and to contract, aka atrial systole. The signal travels from the SA node to the atrioventricular (AV) node during the P-Q segment of the EKG. The AV node purposefully delays
This lab experiment was conducted in a Texas Woman’s University exercise physiology lab room, on September 20, 2013. It consisted of two main participants: A trained participant (Male; 30 years old; 72 in. tall; 82.9 kg) and an untrained participant (Female; 20 years old; 65 in. tall; 75 kg). They were selected by my Prof. April Hartman to participate because they were best qualified to conduct the study in our class. Both participants were assigned to carry out the same experimental task. The Bruce Protocol (graded test) on a treadmill (mode of exercise) was used to conduct the VO2max test. The materials needed were: 1 metabolic cart (with computers); 2 mouthpieces; 1 nose clip; 1 treadmill; 1 RPE scale; 1 timer; pen; paper; and a HR monitor.
The purpose of a homeostatic system is to maintain steady/stable internal environment at a set point. Glucose is used as a major energy source by most cells in the human body. Cells break down glucose in order to produce ATP (energy), to carry out their cellular processes. Blood glucose concentration is maintained between 3.9-5.6 mmol/L-1. The reason behind this range is due to the fact that people of different ages and genders require different amounts of glucose in their blood to carry out different metabolic processes. For example, a growing teenage boy would require a higher blood glucose concentration in comparison to a middle aged women. Blood glucose concentration must be maintained between this set point range because anything above or below this can cause severe problems. If blood glucose concentration becomes too low the tissues in the body that solely rely on glucose as an energy source are greatly affected, as they need a constant supply of glucose in order to function adequately. These
Cardiovascular fitness is a form of aerobic fitness (Neporent and Egan 1997). There are many different ways of evaluating the amount of oxygen used during cardiovascular fitness and one the methods involved is called VO2 Max. VO2 Max is the maximum amount of oxygen that the body can hold. (Simon and Levisohm 1987). Cardiovascular fitness helps to improve a healthy lifestyle.
Overall, the data collected from this lab supported the hypothesis that even though the 1.5 mile run test will not produce the highest average VO2 max, the results of the 1.5 mile run will produce the most accurate VO2 max results as the test puts more physiological demand on the body compared to the Queens College/McArdle Step Test and the Rockport One Mile Walk Test. Even though theoretically all three of the field tests should have produced the same estimate of aerobic capacity, the three tests produced different results due to various reasons. Since the 1.5 mile run placed the most physiological demands on the body, this test was a better indicator of individual VO2 max. Overall, all three of the field tests proved that males had a higher average VO2 max compared to women. In addition, individuals who are aerobically trained tend to perform better considering these individuals are able to sustain a higher intensity level for a longer amount of
These results make sense because the heart beats faster in order to keep the body’s cells well equipped with oxygen. For one to continue exercising for long amounts of time, cells need to create ATP in order to use energy. Oxygen must be present for the process of creating ATP, which not only explains why higher respiratory rates occur during exercise but also faster heart rates. When the heart is beating rapidly, it is distributes oxygenated blood as fast as the body n...
To determine if the intensity of exercise affects the heart rate of a 15-year-old boy. Apparatus - 2 stopwatches - 1 laptop (beep test) - 1 fire glass tape (min. 20 meters) - Chalk to mark 20 meters (start to finish). Method 1) Get beep test ready on laptop from - http://www.youtube.com/watch?v=e0U_yQITBks - 2) Bring five male subjects ready at the starting line to run the beep test. 3) Mark 20 meters on the ground outside on the AstroTurf using a long tape.
AIM: - the aim of this experiment is to find out what the effects of exercise are on the heart rate. And to record these results in various formats. VARIABLES: - * Type of exercise * Duration of exercise * Intensity of exercise * Stage of respiration
The two major things that will help an athlete while measuring the cardiovascular drift are progression and hydration levels. The heart rate of an athlete working hard during a workout should be no more than their maximum heart rate which is found by, if you’re a female take 226-age, if you’re a male take 220-age. If while doing a workout the maximum heart rate is exceeded by too much it may be necessary to take a break or slow down greatly. This may also help with traking the hydration of an athlete. If an athlete stays hydrated their core temperature will stay regulated which means they won’t sweat as much, which also means the heart won’t be under as much stress while transporting the oxygenated blood throughout the body to the
These increases in both systolic pressure and diastolic pressure supports that if an individual exercises, his or her systolic and diastolic blood pressure will increase. Since the systolic pressure measures the pressure that occurs when blood pushes against the walls of the heart during contractions, the increase in systolic pressure reveals that more blood is being pushed through the heart. This statement is further supported by the change in heart rate—increasing from 76 to 101 bpm. The increase in heart rate indicates that the heart is pumping more blood through its ventricles per minute, thus satisfying the need of the body for more oxygen.
My resting heart rate is 64 bpm and my bleep test score (which I aim
Aerobic exercise involves improving the cardiovascular system. It increases the efficiency with which the body is able to utilize oxygen (Dintiman, Stone, Pennington, & Davis, 1984). In other words, aerobic exercise means that continuous and large amounts of oxygen are needed to get in order to generate the amount of energy needed to complete the workout. The most common type of aerobic exercise is long-distance running, or jogging. While running, the body requires large amounts of energy in order for the body to sustain energy. “During prolonged exercise, most of the energy is aerobic, derived from the oxidation of carbohydrates and fats” (Getchell, 1976).